ASTM TM3 Thermal bimetal strip

• Customization: Available
• Product Type: Thermal bimetallic
• Material: Ni36 Mn72Ni10Cu18
• Model NO.: ASTM TM3
• Carbon Content: Low Carbon
• Than bending: 5.7
• resistivity: 0.58
• density: 8.03G/cm³
• Allows the use of temperature: -70~540
• Modulus of elasticity: 1.76
• use: Thermal protector
• Linear temperature: 150~430
• Temperature curvature: 11.3%±5%
• Transport Package: Wooden Case
• Specification: negotiable
• Trademark: tankii
• Origin: China
• HS Code: 7408229000
• Production Capacity: 3000 Tons/Year

Product Description

ASTM TM3 Thermal bimetal strip

overview 

Thermal bimetal strip is by the different expansion coefficient of two or more than two layers of metal or metal solid combination, and along the entire interface varies with temperature and the thermal function of shape changes in composite materials.One of high expansion coefficient become active layer, low expansion coefficient becomes passive.When requirements with high resistivity, but heat sensitive resistance performance is essentially the same type of thermal bimetal series, can be added between the two layers of different thickness of middle layer as a shunt layer, is to achieve the purpose of control different resistivity.

The basic characteristic of the thermal bimetal is changing with temperature and temperature deformation, resulting in a certain moment.Many devices use this feature to convert heat energy into mechanical work to achieve automatic control.Thermal bimetal used for control system and temperature sensor in the measuring instrument.

Main features: Linear temperature range is higher, low thermal performance, can be used at high temperature.
 

shop sign		ASTM TM3
With brand
Composite layer alloybrand	High expansion layer	Ni25Cr8.5
	middle layer	--------
	Low expansion layer	Ni45

Chemical composition

shop sign	Ni	Cr	Fe	Co	Cu	Zn	Mn	Si	C	S	P
									≤
Ni50	49.0~51.0	-	allowance	-	-	-	≤0.6	≤0.3	0.05	0.02	0.02
Ni25Cr8.5	24.0~26.0	7.0~9.5	allowance	-	-	-	0.3~0.6	0.15~0.30	0.5	0.02	0.02

performance

Than bending K(20~135ºC)			Temperature curvature F/(greenhouse ~ 130 ºC)	resistivity		Linear temperature / ºC	Allows the use of temperature / ºC	Density (g/cm after)
Nominal value	Allowable deviation			Standard values	Allowable deviation
	Level 1	Level  2
9.5	±8%	±10%	18.7%±10%	0.73	±5%	+90~320	-70~540	8.0